Webpack Error when npm run start with the current version extension

[lucidhwee]

Hi team,
I got a following error when npm run start in Looker Extension Framework Setup step.

xxx@xxxx:~/looker-explore-assistant/explore-assistant-extension$ npm run start

> [email protected] start
> webpack serve --hot --server-type https  --port 8080 --config webpack.develop.js

[webpack-cli] You need to install 'webpack-dev-server' for running 'webpack serve'.
Error: Cannot find module 'webpack-dev-server'
Require stack:
- /usr/share/nodejs/@webpack-cli/serve/lib/index.js
- /usr/share/nodejs/webpack-cli/lib/webpack-cli.js
- /usr/share/nodejs/webpack-cli/lib/bootstrap.js
- /usr/share/nodejs/webpack-cli/bin/cli.js
- /usr/share/nodejs/webpack/bin/webpack.js

When I used the previous commit version of c986fe3, it worked well without the same issue in my same dev environment.

[praveenkumar-bidgely]

@lucidhwee have you run the npm install command to install all dependencies?

refer this document at this step: https://medium.com/refined-and-refactored/how-to-set-up-genai-x-looker-extension-under-15-minutes-explore-assistant-b1f918ed9c58#:~:text=run%20this%20command-,npm%20install,-Next%2C%20we%20will

PS: please note this document is not updated as per the latest changes. there is one addition task to be done to setup completely i.e. inserting sample examples in bigquery. please refer PR #75 for this change.